Article: The Jurassic ammonite Bredyia Buckman
Publication: Palaeontology
Volume:
20
Part:
3
Publication Date:
August
1977
Page(s):
675
–
693
Author(s):
J. R. Senior
Abstract
The lower Aalenian (Middle Jurassic) ammonite Bredyia subinsignis (Oppel, 1856) has been investigated at several growth stages and found to be dimorphic. Burtonia crassornata Buckman (1910a), the type species of Bredyia Buckman (19106), is regarded as a junior synonym of Ammonites subinsignis Oppel (1856) as are Hammatoceras newtoni Buckman (1892), H.feugeurollense Brasil (1893), and several species described by Dumortier (1874).